TASK: Build a simple shell. DESCRIPTION: Write a shell program in C similar to "csh" that takes commands from the keyboard. In particular, your shell prompt must be the current time (instead of, say, % as is common in UNIX). Make it simple; that is, do not allow it to handle background processes, it can ignore the control-C key, and especially, do not design it to interpret shell scripts. You will need the following system calls: fork waitpid one of execv, execve, execvp (read the manual pages). You must NOT use the C library function "system".

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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TASK: Build a simple shell.
DESCRIPTION:
Write a shell program in C similar to "csh" that takes commands from the
keyboard. In particular, your shell prompt must be the current time
(instead of, say, % as is common in UNIX).
Make it simple; that is, do not allow it to handle background processes,
it can ignore the control-C key, and especially, do not design it to
interpret shell scripts.
You will need the following system calls:
fork
waitpid
one of execv, execve, execvp (read the manual pages).
You must NOT use the C library function "system".

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